201042357 六、發明說明： 【發明所屬之技術領域】 本發明係關於一種圖像訊號供給裝置、與上述圖像訊號 供給裝置連接之圖像顯示裝置、以及包含上述圖像訊號供 給裝置及圖像顯示裝置之圖像顯示系統。 2009年1月27日中請之日本專利N〇.2009-015070之全文 明確地以引用之方式併入本文。 【先前技術】 〇 近年來’將文件攝影機（d〇cuinent camera)連接於投影 儀’利用投影儀投影由文件攝影機所拍攝之圖像之技術於 展會等中得到有效運用。作為此種圖像顯示系統之一，提 出有種可自文件攝影機側控制由投影儀所投影之圖像之 ， 色調或明亮度等之構成（專利文獻1)。 然而，上述先前之技術中，對於使用者而言，卻有如下 之理由使得操作性能並不優異。投影儀通常包含複數個輸 〇 入介面，當與文件攝影機以外之輸入機器連接而顯示影像 時，右又連接有文件攝影機之情形日夺，則&法立即顯示文 件攝和機之圖像。因此，使用者有時必需使用投影儀遙控 5、或者對投影儀所包含之面板開關進行操作而將輸入源 刀換成文件攝衫機，但此時，使用者必需移動至載置有投 如儀或技W儀遙控器之場所因而操作性能欠佳。 [專利文獻1]日本專利特開2003-101818號公報 ' 【發明内容】 [發明所欲解決之問題] 145668.doc 201042357 “本發明係為解決上述先前之課題而完成者，其目的在於 藉由使投影儀之輪入源之切換變得容易而謀求操作性能之 提昇。。 [解決問題之技術手段] 為解決上述課題之至φ __ 八 4· <· n 。卩分，本發明可作為以下之形 態或應用例而實現。 [應用例1 ] 一種圖像訊號供认奘 現併、、σ裒置，其係連接於包含輸 入源切換部之圖像顯示裝 衣置且將可成為上述輸入源之一 的圖像訊號輪出至上述 , 4圖像顯不裝置者，其特徵在於包 |凡部，宜_ ffl JuA t . 5 •^上述圖像顯示裝置之間進行通 訊；以及切換指令輸出部， ^ ^ 丨具將用於執行上述輸入源之切 置。 达通讯部而輸出至上述圖像顯示裝 於應用例1中所据- ♦一於屮」： 圖像訊號供給裝置中，藉由切換 邱而於山 仃輪入源之切換之指令訊號經由通訊 #而輸出至圖像顯示裝 切換圖像顯示裝置之題· 圖像訊級给裝置側 中所福_ j顯不圖像之輸入源。因此，應用m 不之圖像讯號供給裝置中，使用者無需移動至載置 便利性較高。圖像顯不裝置用遙控器之場所，故而 j應用例2]如應用例丨之圖像訊號供 攝像部，其拍攝被攝體。 八中包括· 應用例2中所揭示之 被攝體之相機。冑像。“供、4置可有效用作拍攝 145668.doc 201042357 [應用例3]如應用例丨或2之圖像訊號供給裝置，其中包 括：開關，其接受特定之操作；且上述切換指令輸=部= 構成為’根據對上述開關所進行之特定之操作，而進行上 . 述指令訊號之輸出。 於應用例3中所揭示之圖像訊號供給裝置中，使用者只 要操作開關便可將用於執行輸入源之切換之指令訊號輸出' 至圖像顯示裝置。因此，操作性能更為優異。 〇 [應用例4]如應用例2之圖像訊號供給裝置，其中包括·· 可摺疊之支臂’其係以保持上述攝像部之方式而構成；以 及支臂展開偵測部，其偵測上述支臂處於展開之狀態丨且 ,上述切換指令輸出部之構成為，於由上述支臂展開:測部 ㈣出支臂處於展開之狀態時，進行上述指令訊號之輸 出。 於應用例4中所揭示之圖像訊號供給裝置中，使用者只 要於利用圖像訊號供給裝置進行拍攝時進行展開保持攝像 〇 部之支臂之作業，便可將用於執行輸入源之切換之指令訊 號輸出至圖像顯示裝置。因此，操作性能更為優異。 [應用例5]如應用例丨至4中任一項之圖像訊號供給裝 置，其中上述通訊部之構成為，進行遵循USB規格之通 訊。 於應用例5中所揭示之圖像訊號供給裝置中，可使用作 為通用介面之USB(Universal Serial Bus，通用串列匯流排） ' 進行通訊。 [應用例6] —種圖像顯示裝置，其係與圖像訊號供給裝 145668.doc 201042357 置連接者，其包括：通訊部，其用於在與上述圖像訊號供 給裝置之間進行通訊；輸入源切換部，其切換所顯示之圖 像之輸入源；以及切換控制部，其於經由上述通訊部而自 上述圖像讯號供給裝置接收到用於執行上述輸入源之切換 之指令訊號時，使上述輸入源切換部動作。 [應用例7]-種圖像顯示系統’其係包括圖像顯示裝置 與連接於上述圖像顯示裝置之圖像訊號供給裝置者，上述 圖像顯示裝置包括：輸入源切換部，其切換所顯示之圖像 之輸入源；且上述圖像訊號供給裝置包括：通訊部，其用 於在與上述圖像顯示裝置之間進行通訊；以及切換指^輸 出部，其將用於執行上述輸入源之切換之指令訊號經由上 述通訊部而輸出至上述圖像顯示裝置。 例6中所揭示之圖像顯示裝置以及應用例7中所揭 示之圖像顯示系統中，可自圄梯1。 示之圖## 、錢給裝置側切換所顯 ，、圖像之輸入源。因此，於；S用你| + 干㈣^ 於應用例6中所揭示之圖像顯 不裝置以及應用例7中所揭示 號供給裝置之使用者益… 系統中，圖像訊 為換圖像顯示裝置之輪入 源’而移動至载置有圖像 询八 栌…㈤ 圖像』不裳置或該圖像顯示裂置用遙 控器的％所，因而操作性能優異。 再者，本發明可以各種態樣而 卜什国你-上 只兄例如可以用於實現 上迷圖像訊號供給裝置或上見 法、用於實現上…〖圖像‘，，、員不裝置之各部分之方 π K貫現上述各部分之雷 之記錄媒體、以m x 、記錄有該電腦程式 系體μ及該電腦程式等 【實施方式】 實現。 145668.doc 201042357 ι下，一面參照圖式一面根據實施例說明本發明之實施 形態。 1.硬體之構成： -圖1係表示作為本發明之一實施例之投影儀系統之概略 構成的說明圖。如圖所示，投影儀系統100包括：投影儀 10、連接於該投影儀10之4台圖像輸入機器即文件攝影機 50、個人電腦 90、錄影機（VTR, vide〇 tape rec〇rder)9i、 ❹ 以及Video Disc ’數位影音光碟）播放器92。 該等圖像輸入機器對投影儀10提供圖像之輸入源。此處， 圖像可為靜態圖像、動態圖像（即影像）中之任一者。文件 攝影機50獲取影像。投影儀1〇自該等輸入源之中選擇所需 • 者並根據所選擇之輸入源將圖像顯示（投影）於螢幕s匸 上。 文件攝影機50包括：基台52、載置面54、支臂56、相機 鏡頭58、以及操作面板6〇等。載置面54係設置於基台μ 〇 上，其載置描繪有文字或圖晝之紙、或者立體之物體等被 攝體τ。支臂56保持相機鏡頭58。相機鏡頭58係包含透 鏡、LED(Light Emitting Diode，發光二極體）、以及CCD (Charge Coupled Device，電荷耦合元件）等光電轉換元件 等而構成，其對載置面54上所載置之被攝體τ進行拍攝。 操作面板60包含複數個按鈕（按鈕型開關），其輸入使用者 對文件攝影機50之操作指令。 再者，支臂56既可為自基台52向上方側延伸並得以固定 者，亦可形成為朝向基台52可摺疊地轉動之構成。藉由形 145668.doc 201042357 可藉由展開被摺 成為可摺疊，可使文件攝影機5 〇小型化 疊之支臂56而拍攝被攝體。 藉由上述構成之文件攝影機5〇， 對戟置面54上所載置之 破攝體Τ進行拍攝，並將表示由兮 丁由4拍攝所獲得之圖像之圖 像訊號輸出至投影儀10。再者，犄[Technical Field] The present invention relates to an image signal supply device, an image display device connected to the image signal supply device, and the image signal supply device and image display. An image display system for the device. The entire disclosure of Japanese Patent No. 2009-015070, filed on Jan. 27, 2009, is expressly incorporated herein by reference. [Prior Art] In recent years, the technology of connecting a document camera (d〇cuinent camera to a projector) using a projector to project an image captured by a document camera has been effectively utilized in exhibitions and the like. As one of such image display systems, there is proposed a configuration in which an image projected by a projector can be controlled from a document camera side, such as color tone or brightness (Patent Document 1). However, in the above prior art, there are the following reasons for the user that the operational performance is not excellent. The projector usually includes a plurality of input interfaces. When an image is displayed by connecting to an input device other than the document camera, and the document camera is connected to the right, the & method immediately displays the image of the document camera. Therefore, the user sometimes has to use the projector remote control 5, or operate the panel switch included in the projector to replace the input source knife with a document camera, but at this time, the user must move to the placement and vote. The operation of the instrument or the remote control of the instrument is therefore poor. [Patent Document 1] Japanese Patent Laid-Open Publication No. 2003-101818A SUMMARY OF THE INVENTION [Problems to be Solved by the Invention] 145668.doc 201042357 "The present invention has been completed to solve the above-mentioned problems, and the object thereof is to It is easy to switch the wheel of the projector to the source and improve the operation performance. [Technical means for solving the problem] In order to solve the above problem, φ __ 八 4 · <· n is divided into, the present invention can be used as The following forms or application examples are implemented. [Application Example 1] An image signal is supplied to the image display device, and is connected to an image display device including an input source switching portion and is capable of being the input. The image signal of one of the sources is rotated to the above, and the image is not displayed by the device, and is characterized by a package, a part, preferably _ffl JuA t . 5 •^ communication between the image display devices; and a switching instruction The output unit, ^ ^, is used to perform the cutting of the input source. The output is output to the image display in the application example 1 - ♦ 屮 屮 :: in the image signal supply device, By switching Qiu and Yushan Instruction into the source of the switching signal is output to the image display device switching an image display apparatus title · stage of the image information to the apparatus side as _ J Four significant image of an input source through the communication #. Therefore, in the image signal supply device to which m is not applied, the user does not need to move to a high placement convenience. The image display device is not used in the remote control device. Therefore, the application example 2] is applied to the image pickup unit as an image portion of the application example, and the subject is photographed. The eighth includes the camera of the subject disclosed in the application example 2. Animated. "Supply and 4" can be effectively used for shooting 145668.doc 201042357 [Application 3] The image signal supply device of Application Example 2 or 2, which includes: a switch that accepts a specific operation; and the above switching command output portion = The output of the command signal is performed according to the specific operation performed on the switch. In the image signal supply device disclosed in Application Example 3, the user can operate the switch as long as it is operated. The command signal output of the switching of the input source is outputted to the image display device. Therefore, the operation performance is more excellent. 〇 [Application Example 4] The image signal supply device of Application Example 2, which includes the collapsible arm 'The system is configured to hold the imaging unit; and the arm deployment detecting unit detects that the arm is in an unfolded state, and the switching command output unit is configured to be deployed by the arm: The measuring unit (4) outputs the command signal when the arm is in the unfolded state. In the image signal supply device disclosed in the application example 4, the user only needs to use the image signal to supply the device. When the operation is performed to expand and hold the arm of the camera, the command signal for performing the switching of the input source can be output to the image display device. Therefore, the operation performance is further excellent. [Application 5] The image signal supply device according to any one of the preceding claims, wherein the communication unit is configured to perform communication conforming to the USB standard. The image signal supply device disclosed in the application example 5 can be used as a general interface. USB (Universal Serial Bus) ' Communicates. [Application Example 6] An image display device is connected to an image signal supply device 145668.doc 201042357, which includes: a communication unit And for inputting communication with the image signal supply device; an input source switching unit that switches an input source of the displayed image; and a switching control unit that transmits the image from the communication unit via the communication unit When the number supply means receives the command signal for executing the switching of the input source, the input source switching unit is operated. [Application Example 7] - An image display system "includes And the image display device includes: an input source switching unit that switches an input source of the displayed image; and the image signal supply device includes the display device and the image signal supply device connected to the image display device a communication unit for communicating with the image display device; and a switching finger output unit for outputting a command signal for performing switching of the input source to the image display via the communication unit The image display device disclosed in Example 6 and the image display system disclosed in Application Example 7 can be used as the ladder 1. The map is shown in ##, the money is switched to the device side, and the image is displayed. The input source. Therefore, the use of the image display device disclosed in the application example 6 and the user benefit device disclosed in the application example 7 are used in the system. Inverted to the image display device's wheel-in source' and moved to the image-mounted image. (5) The image is not placed or the image shows % of the remote controller for the split, so the operation performance is excellent. Furthermore, the present invention can be used in various ways, and the other brothers can be used to implement the image signal supply device or the above method, for implementing the image, and the device is not installed. Each part of the π K is realized by the recording medium of the above-mentioned various parts, and is implemented by mx, the computer program system μ, and the computer program. 145668.doc 201042357 An embodiment of the present invention will be described with reference to the drawings while referring to the drawings. 1. Structure of Hardware: Fig. 1 is an explanatory view showing a schematic configuration of a projector system as an embodiment of the present invention. As shown, the projector system 100 includes a projector 10, four image input machines connected to the projector 10, that is, a document camera 50, a personal computer 90, and a video recorder (VTR, vide〇tape rec〇rder) 9i. , ❹ and Video Disc 'digital video discs' player 92. The image input machines provide an input source for the image to the projector 10. Here, the image may be any of a still image and a moving image (ie, an image). The document camera 50 acquires an image. The projector 1 selects the desired one from among the input sources and displays (projects) the image on the screen s according to the selected input source. The document camera 50 includes a base 52, a mounting surface 54, an arm 56, a camera lens 58, and an operation panel 6A. The mounting surface 54 is provided on the base μ ,, and the object τ such as a paper on which characters or figures are drawn or a three-dimensional object is placed. The arm 56 holds the camera lens 58. The camera lens 58 includes a lens, an LED (Light Emitting Diode), and a photoelectric conversion element such as a CCD (Charge Coupled Device), and is placed on the mounting surface 54. The subject τ is taken for shooting. The operation panel 60 includes a plurality of buttons (button type switches) that input user's operation instructions to the document camera 50. Further, the arm 56 may be extended from the base 52 to the upper side and fixed, or may be formed to be foldably rotatable toward the base 52. By means of the shape 145668.doc 201042357, the document camera 5 can be made to fold the arm 56 to capture the subject by being folded into a foldable shape. The image camera 5A configured as described above images the image of the image taken on the surface 54 and outputs an image signal indicating the image obtained by the filming of the film to the projector 10. . Furthermore, 犄
Ba 钕衫儀10與文件攝影機50 之間經由USB電纜62而進行USB連接。 圖2係表示投影儀1 〇與文件攝 什攝办機50之内部構成之說明 圖。如圖所示，投影儀1〇包括：控制部2〇、存儲部22、操 作部24、USB介面部26、輪入介面邱 "⑽邛28、輸入源切換部 %、圖像處理部32、以及投影部34。36係匯流排，其將控 制部20與除投影部34以外之各部分㈣之間加以連接。 控制部20係由CPU(Central Ργ〇__灿，中央處理單 元）等構成’其根據存儲部22中所存儲之電腦程式而動 作，以控制各部分22〜32。存儲部22存儲圖像資料或各種 電腦程式。作為各種電腦程式’存储有眾所周知之则模 、且USB通別驅動程式、圖像顯示程式、以及下述之切換 執^處理用之程式等。操作部Μ係用於將來自使用者之操 作指令輸入至投影儀1〇中者，其包含操作面板（未圖示厂 =控器受光部（未圖示）等。再者，操作面板與遙控器中包 3用於切換由投影儀1〇所顯示之圖像之輸入源的輸入源切 換用按鈕（未圖示）。 USB介面部26係用於根據USB(通用串列匯流排）之規格 而與外部機器交接控制資料或圖像資料等之介面。於本實 加例中’文件攝影機50與該USB介面部26連接。 145668.doc 201042357 輸入介面部28係用於與USB以外之外部機器交接控制資 料以及圖像資料之介面，此處包括：RGB介面、視訊介 面、S-視訊介面等。RGB介面連接有個人電腦9〇，視訊介 面連接有VTR91，S-視訊介面連接有DVD播放器92。 輸入源切換部30藉由自USB介面部26與輸入介面部28所 包含之各介面之中選擇1個介面，而切換由投影儀1〇所顯 示之圖像之輸入源。 圖像處理部3 2根據自藉由輸入源切換部3 〇所選擇之介面 所輸入之圖像資料或影像資料而生成圖像顯示.用之顯示用 圖像資料。投影部34如圖4所示’包含光源342、光調變元 件344(344R、344G、344B)、投影透鏡346、照明光學系統 341、色彩分離光學系統343、中繼光學系統345、以及合 成光學系統347等而構成。再者，本實施例之投影儀1〇採 用透射型液晶面板作為光調變元件344。自光源342所射出 之白色光輕過照明光學系統341、色彩分離光學系統343、 中繼光學系統345而分離成紅光、綠光以及藍光，該等光 分別根據由圖像處理部32所生成之顯示用圖像資料而由光 調變元件344進行光調變之後，入射至合成光學系統347 中。藉由光調變元件344進行調變之各色之圖像光藉由合 成光學系統347而合成’並自投影透鏡346進行投影。合成 光學系統347可由雙色稜鏡等構成。 文件攝影機50包括：控制部70、存儲部72、操作部74、 USB介面部76、照明部78、照明控制部80、攝像部82、圖 像處理部84、以及析像度轉換部86。88係匯流排，其將控 145668.doc 201042357 :部7°與除照明部78以及攝像部82以外之各部72〜76、 、84、86之間加以連接。 士控制部70係由CPU ' Dsp(Digital仙㈣pr⑽讀，數位 :唬處理益)等構成’其根據存儲部72中所存儲之電腦程 式而動作’以控制文件攝影機5〇所包含之各部分Μ。 料部72存儲圖像諸或各種電腦程式。作為各種電腦程 式’存儲有眾所周知之USB模組、刪_㈣程式、以 及下述之切換指令發布處理用之程式等。 旦操作部74係用於將來自使用者之操作指令輸人至文件攝 ’v機50中者’丨包含文件攝影機5〇中所設置之操作面板的 (圖1)。又’操作部74包含輸入源切換用按鈕紐。輸入源 切換用按叙SB係設置於圖！所示之操作面板6〇上者，關於 其功能隨後詳述。 USB "面76用於根據USB之規格而與外部機器交接控 制資料或圖像資料等之介面。於本實施例中該usb介面 部76與投影儀1〇iUSB介面部％連接。該usb介面部”相 當於作為本發明之構成要素之「通訊部」。 照明部78係對被攝體τ照射光之led等光源。照明控制 部80控制照明部78之開/關等。攝像部82包含CCD等光電 轉換元件或進行AE(Auto Exposure，自動曝光）/AF(Aut〇 F〇CUS ’自動對焦）控制之驅動部等。攝像部82係内置於相 機鏡頭58(圖1)中。圖像處理部84對表示由攝像部82所獲得 之圖像之圖像訊號實施白平衡等圖像處理。析像度轉換部 86將由攝像部82所獲得之圖像之析像度轉換成投影儀丨〇所 145668.doc •10- 201042357 月求析像度。該投影儀1G之請求係自投影儀1峨由 介面部76發送而來。 以士上方式構成之投影儀1()以及文件攝影機⑽以如下 • 之方式動作而進行被攝體T(圖1)之圖像之顯示。即，若利 謂8電_連接文件攝影機50與投影儀1()，則投影儀10 纹由USB介面部26而建立與文件攝影機5〇之usb介面部％ 之間之連接。 ❹ 繼而，於文件攝影機50侧，當控制部70接受操作部74之 刼作時，則藉由控制照明控制部8〇、圖像處理部84、以及 析像度轉換部8 6而對載置面5 4 (圖丨）上所載置之被攝體τ進 行拍攝，並將由該拍攝所獲得之圖像訊號暫時存儲於存儲 部72中。其後，控制部70經由USB介面部76將存儲部72中 所存儲之圖像訊號發送至投影儀i 〇側。 於投影儀10側，控制部20經由USB介面部26接收自文件 攝影機5 0發送而來之圖像訊號，以控制圖像處理部3 2，藉 Q 此根據所接收之圖像訊號而生成顯示用圖像資料。其結 果’藉由投影部34投影根據上述顯示用圖像資料而經光調 變之投影光。其結果’於螢幕SC(圖1)上顯示被攝體T之圖 - 像。 . 投影儀1 〇如先前所說明般，除文件攝影機50以外亦包含 各種輸入源。投影儀10之控制部20於接受由使用者對操作 部24所包含之輸入源切換用按姐（未圖示）實施之操作時， 使輸入源切換部30動作，並自USB介面部26以及輸入介面 部28所包含之各介面之中選擇一個介面，藉此切換由投影 145668.doc -11 · 201042357 儀Η)所顯示之圖像之輸入源。 進而，於本實施例中，文件攝影機5〇側之操作部Μ亦如 上所述般包含輸入源切換用按鈕SB。當使用者操作該輸入 源切換用按鈕SB時’亦同樣地進行由投影儀1〇所顯示之圖 像之輸入源的切換。以下，對按壓輸入源切換用按鈕sB時 之文件攝影機50以及投影儀1〇之動作進行詳細說明。 2.軟體之構成： 圖3係表示由文件攝影機50之控制部70所執行之切換指 令發布處理的流程圖。該切換指令發布處理係每隔特定時 〇 間而反覆執行。首先，當藉由USB電纜62將文件攝影機 與投影儀100電性連接時，投影儀1〇檢測文件攝影機5〇， 並請求其發送描述符。文件攝影機5〇回應該請求，將描述 付資訊發送至投影儀1 〇 ,藉此文件攝影機5 〇與投影儀1 〇之， USB連接得以建立（步驟sl〇〇)。於該實施例中，將投影儀 10设定為「主機」，將文件攝影機5〇設定為「設備」。「主 機」以及「設備」之定義係根據USB協定而定。繼而，文 件攝影機50之控制部70判定操作面板60上所設置之輸入源CJ 切換用按鈕SB是否被按下（步驟S11〇)。此處，於判定輸入 源切換用按鈕SB已被按下之情形時，控制部7〇將用於執行 輸入源之切換之指令訊號（以下稱為「輸入源切換指令訊 號」）經由USB介面部76而發送至投影儀1〇(步驟sl2〇)。詳 ’ 細而言，文件攝影機5〇係以將有關各種按鈕之按鈕ID與按 鈕之按下或按鈕之釋放作為輸入源切換指令訊號而發送至 投影儀1 0之方式構成。 145668.doc -12- 201042357 來自USB介面部76之輸入源切換指令訊號之發送實際上 係藉由USB通訊控制中之「控制傳輪」或「中斷傳輸」而 進行。即，事先將表示輸入源切換用按鈕SB被按壓之資料 暫％存儲於存儲部72中，然後自投影儀1〇側經由USB介面 邛26獲取上述資料，藉此實現輸入源切換指令訊號之發 送。換言之，將表示上述輸入源切換用按鈕SB被按下之資 料作為輸入源切換指令訊號而發送。 Ο Ο 控制部70以及由控制部7〇所執行之步驟s丨2〇之處理相當 於作為本發明之構成要素之「切換指令輸出部」。於執行 步驟S12G之後，退至「返回」，而暫時結束該切換指令發 布處理。另-方面，當於步驟8110中判定輸人源切換用按 細未被按壓時，立即退至「返回」，而暫時結束該切換 指令發布處理》 圖4係表示由投影儀1G之控制部2()所執行之切換執行處 理的流程圖。該切換執行處理係每隔特料間而反覆執 盯首先，作為「主機」之投影儀1〇建立與作為「設備」 之文件攝影機50之連接（步驟_)。繼而，投影㈣之控 制部20進行接收自文件攝影機5()發送而來之輸人源切換指 令訊號的處理（步驟咖）。此處，於自文件攝影機5〇未發 送來輸入源切換指令訊號而導致接收失敗之情形時，於下 -個步驟S220中進行否定判定，即判定無輸入源切換指令 訊號丄並退至「返回」，而暫時結束該切換執行處理。 另一方面，於輸人源切換指令訊號之接收成功，在步驟 中㈣存在輸人源切換指令訊號之情形時，控制部2〇 145668.doc -13- 201042357 使輸入源切換部30動作，執行將正顯示之輸入源切換成下 一個輸人源之輸人源切換處理（步驟S 2 3 0)。 丨-視訊 ;P儀10中’如上所述’可選擇複數個輸入源，但事 先對省等輸入源排列位次。例如w「電腦」—「視訊」— 相機」之順序排列位次。此處 電腦 J — ，個人電腦9〇’「視訊」係VTim，「s_視訊」係'DVD播放 Γ 才機J係文件攝影機5 0。輸入源切換部3 0進行將 輸入源切換成下一位次之輸入源之處理。 其後，控制部2G判定是否自於步驟S23时進行切換之輸 ;入源輸入有圖像訊號（步驟⑽）。此處，於判定存在圖像 訊號之輸入之情形時’控制部2〇使圖像處理部Μ動作，而 顯示基於所輸入之輸入源之圖像（步驟S250)。 另一方面，當於步驟S240 t判定不存在來自上述輸入源 之圖像訊號之輪入時，於步驟以⑼中進行處理並判定對 ;目A正顯示之輸入源以外之所有輸入源之輸入檢索是否The USB device 10 and the document camera 50 are connected via USB via a USB cable 62. Fig. 2 is an explanatory view showing the internal configuration of the projector 1 and the document camera 50. As shown in the figure, the projector 1A includes a control unit 2, a storage unit 22, an operation unit 24, a USB interface unit 26, a wheeling interface (10), an input source switching unit %, and an image processing unit 32. And a projection unit 34. The 36-series bus bar connects the control unit 20 to each part (four) other than the projection unit 34. The control unit 20 is constituted by a CPU (Central Ρ 〇 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ The storage unit 22 stores image data or various computer programs. As various computer programs, there are known well-known modules, a USB-specific driver, an image display program, and the following programs for switching processing. The operation unit is for inputting an operation command from the user to the projector 1B, and includes an operation panel (not shown in the factory = controller light receiving unit (not shown), etc. Further, the operation panel and the remote control The in-package 3 is used for switching an input source switching button (not shown) for inputting an image of an image displayed by the projector 1. The USB interface 26 is used for specifications according to USB (Universal Serial Bus) The interface between the control device and the image data is transferred to the external device. In the present embodiment, the file camera 50 is connected to the USB interface portion 26. 145668.doc 201042357 The input interface 28 is used for external devices other than USB. Interface for transfer control data and image data, including: RGB interface, video interface, S-video interface, etc. RGB interface is connected with personal computer 9〇, video interface is connected with VTR91, S-video interface is connected with DVD player 92. The input source switching unit 30 switches the input source of the image displayed by the projector 1A by selecting one interface from each of the interfaces included in the input interface portion 28 from the USB interface portion 26. Department 3 2 according to self The image data or image data input by the interface selected by the input source switching unit 3 生成 is used to generate an image for display. The projection unit 34 includes a light source 342 and a light modulation as shown in FIG. 4 . Element 344 (344R, 344G, 344B), projection lens 346, illumination optical system 341, color separation optical system 343, relay optical system 345, and synthetic optical system 347, etc. Further, projector 1 of the present embodiment透射 A transmissive liquid crystal panel is used as the light modulation element 344. The white light emitted from the light source 342 is separated from the illumination optical system 341, the color separation optical system 343, and the relay optical system 345 to be separated into red light, green light, and blue light. The light is modulated by the light modulation element 344 based on the image data for display generated by the image processing unit 32, and then incident on the combining optical system 347. The light is modulated by the light modulation element 344. The image lights of the respective colors are synthesized by the combining optical system 347 and projected from the projection lens 346. The combining optical system 347 can be constituted by a two-color cymbal or the like. The document camera 50 includes a control unit 70. The storage unit 72, the operation unit 74, the USB interface unit 76, the illumination unit 78, the illumination control unit 80, the imaging unit 82, the image processing unit 84, and the resolution conversion unit 86. The 88-series bus bar, which will control 145668. Doc 201042357: The portion 7 is connected to each of the units 72 to 76, 84, 86 other than the illumination unit 78 and the imaging unit 82. The controller control unit 70 is read by the CPU 'Dsp (Digital (four) pr (10), digit: 唬 processing It is configured to "operate in accordance with the computer program stored in the storage unit 72" to control the respective parts included in the document camera 5. The material portion 72 stores images or various computer programs. As various computer programs, a well-known USB module, a _(4) program, and a program for issuing a switching instruction as described below are stored. The operation unit 74 is for inputting an operation command from the user to the document camera v, and includes an operation panel provided in the document camera 5 (Fig. 1). Further, the operation unit 74 includes an input source switching button. The input source is switched to the map by the SB system! The operation panel 6 shown is described above with respect to its function. The USB "face 76 is used to interface with an external device to control data or image data according to the specifications of the USB. In the present embodiment, the usb interface portion 76 is connected to the projector 1 〇 i USB interface. This usb interface is equivalent to the "communication unit" which is a constituent element of the present invention. The illumination unit 78 is a light source such as a LED that irradiates light to the subject τ. The illumination control unit 80 controls on/off of the illumination unit 78 and the like. The imaging unit 82 includes a photoelectric conversion element such as a CCD or a drive unit that performs AE (Auto Exposure)/AF (Aut〇 F〇 CUS 'autofocus) control. The imaging unit 82 is built in the camera lens 58 (Fig. 1). The image processing unit 84 performs image processing such as white balance on the image signal indicating the image obtained by the imaging unit 82. The resolution conversion unit 86 converts the resolution of the image obtained by the imaging unit 82 into a resolution of the projector 145668.doc •10-201042357. The request of the projector 1G is transmitted from the projector 1 by the interface portion 76. The projector 1 () and the document camera (10), which are constructed in a manner of above, operate as follows to display an image of the subject T (Fig. 1). That is, if the document camera 50 and the projector 1() are connected, the projector 10 is connected to the usb interface portion % of the document camera 5 by the USB interface portion 26. Then, when the control unit 70 receives the operation of the operation unit 74, the control unit 70 controls the illumination control unit 8A, the image processing unit 84, and the resolution conversion unit 86 to be placed on the document camera 50 side. The subject τ placed on the face 5 4 (pictured) is photographed, and the image signal obtained by the photographing is temporarily stored in the storage unit 72. Thereafter, the control unit 70 transmits the image signal stored in the storage unit 72 to the projector i side via the USB interface unit 76. On the projector 10 side, the control unit 20 receives the image signal transmitted from the document camera 50 via the USB interface unit 26, and controls the image processing unit 3 to generate a display based on the received image signal. Use image data. As a result, the projection light which is modulated by the light based on the image data for display is projected by the projection unit 34. As a result, the image of the subject T is displayed on the screen SC (Fig. 1). The projector 1 includes various input sources in addition to the document camera 50 as previously explained. When the control unit 20 of the projector 10 receives an operation performed by the user on the input source switching user (not shown) included in the operation unit 24, the input source switching unit 30 is operated from the USB interface portion 26 and An interface is selected from among the interfaces included in the input interface 28, thereby switching the input source of the image displayed by the projection 145668.doc -11 · 201042357. Further, in the present embodiment, the operation unit 〇 on the side of the document camera 5 includes the input source switching button SB as described above. When the user operates the input source switching button SB, the switching of the input source of the image displayed by the projector 1 is similarly performed. Hereinafter, the operation of the document camera 50 and the projector 1A when the input source switching button sB is pressed will be described in detail. 2. Configuration of Software: Fig. 3 is a flowchart showing a switching instruction issuing process executed by the control unit 70 of the document camera 50. The switching instruction issuing process is repeatedly executed every specific time. First, when the document camera is electrically connected to the projector 100 by the USB cable 62, the projector 1 detects the document camera 5 and requests it to transmit a descriptor. The document camera 5 should request that the payment information be sent to the projector 1 〇, whereby the document camera 5 is connected to the projector 1 and the USB connection is established (step s1〇〇). In this embodiment, the projector 10 is set to "host", and the document camera 5 is set to "device". The definitions of "host" and "device" are based on the USB protocol. Then, the control unit 70 of the document camera 50 determines whether or not the input source CJ switching button SB provided on the operation panel 60 is pressed (step S11). Here, when it is determined that the input source switching button SB has been pressed, the control unit 7 transmits a command signal for switching the input source (hereinafter referred to as "input source switching command signal") via the USB interface. 76 is sent to the projector 1 (step sl2). More specifically, the document camera 5 is configured to transmit a button ID of each button and a button press or button release as an input source switching command signal to the projector 100. 145668.doc -12- 201042357 The input source switching command signal from the USB interface unit 76 is actually transmitted by the "control wheel" or "interrupt transmission" in the USB communication control. In other words, the data indicating that the input source switching button SB is pressed is temporarily stored in the storage unit 72, and the data is acquired from the side of the projector 1 via the USB interface 26, thereby realizing the transmission of the input source switching command signal. . In other words, the information indicating that the input source switching button SB has been pressed is transmitted as an input source switching command signal. The process of the control unit 70 and the step s2 executed by the control unit 7 is equivalent to the "switch command output unit" which is a component of the present invention. After the execution of step S12G, the process returns to "return" and the switching instruction is temporarily terminated. On the other hand, when it is determined in step 8110 that the input source switching fine is not pressed, the process immediately retreats to "return" and the switching command issuing process is temporarily ended. FIG. 4 shows the control unit 2 by the projector 1G. () A flowchart of the execution of the switching execution process. This switching execution process is repeated every time, and the projector 1 as a "host" establishes a connection with the document camera 50 as a "device" (step_). Then, the control unit 20 of the projection (4) performs processing (step coffee) of receiving the input source switching command signal transmitted from the document camera 5 (). Here, when the input of the source switching command signal is not transmitted from the document camera 5, the reception failure occurs, and a negative determination is made in the next step S220, that is, it is determined that there is no input source switching command signal and is returned to "return". Then, the switching execution process is temporarily ended. On the other hand, when the reception of the input source switching command signal is successful, in the case where there is a case where the input source switching command signal is present in the step (4), the control unit 2 145668.doc -13 - 201042357 causes the input source switching unit 30 to operate and execute The input source being displayed is switched to the input source switching process of the next input source (step S 2 3 0).丨-Video; in the P instrument 10, as described above, a plurality of input sources can be selected, but the input sources are arranged in advance for the province. For example, the order of "computer" - "video" - camera" is ranked. Here, the computer J-, the personal computer 9〇's "video" is VTim, the "s_video" is the 'DVD player' and the J machine document camera 50. The input source switching unit 30 performs a process of switching the input source to the input source of the next bit. Thereafter, the control unit 2G determines whether or not the switching is performed from the step S23; the input signal is input to the source (step (10)). Here, when it is determined that there is an input of the image signal, the control unit 2 causes the image processing unit Μ to operate, and displays an image based on the input source (step S250). On the other hand, when it is determined in step S240 t that there is no rounding of the image signal from the input source, the processing is performed in step (9) and the input of all the input sources other than the input source being displayed is determined. Search if
L 已結束。此處’於判定對於所有輸人源之輸人檢索並未結 束之情形時’於步驟S230中恢復處理，將輸入源切換成下 一個輸入源。 圖5係表示藉由步驟以”至以⑽之反覆之處理所實現的 輸入源之切換之情況之一例的說明圖。若於如圖中之0)所 示般正顯示根據「電腦」之輸入源之圖像時，如（b)所示按 壓輸入源切換用按鈕SB，則如（〇所示’輸入源移行至接 下來之「視訊」（步驟S230) ’但若不存在來自作為「視 」之VTR91之圖像訊號之輸入（步驟S24〇 ·· n〇)，則如 145668.doc -14- 201042357 (d)所示’輸入源進而移行至接下來之「s_視訊」（步驟 S230)。此處’當存在來自作為「s_視訊」之dvd播放器 92之圖像訊號之輸入時（步驟S24〇 : YES)，顯示根據該 DVD播放器92之圖像（步驟S25〇)。 如圖5(e)所示’於再一次按壓輸入源切換用按鈕sb之情 形時，輸入源移行至接下來之「相機」，當存在來自作為 「相機」之文件攝影機50之圖像訊號之輸入時，如⑺所 示，顯示根據該文件攝影機50之圖像（步驟S250)o如（g)所 示’於進而再一次按壓輸入源切換用按鈕SB之情形時，輸 入源移行至位次為起始位次之「電腦」，當存在來自作為 「電腦」之個人電腦9〇之圖像訊號之輸入時，如（a)所示， 顯示根據該個人電腦90之圖像（步驟S250)。 再者’返回至圖4，當於步驟S260中判定對於目前正顯 示之輸入源以外之所有輸入源之輸入檢索已結束時，控制 部20進行顯示輸入源一覽晝面之處理（步驟S270)。當判定 對於所有輸入源之輸入檢索已結束時，由於僅有目前正顯 示之圖像訊號被輸入至投影儀10，因此於螢幕sc上顯示輸 入源一覽晝面，促使使用者進行下述之操作。 圖6係表示輸入源一覽晝面S S之一例之說明圖。如圖所 示’於輸入源一覽畫面SS中，連接於投影儀1〇之圖像輸入 機器之所有輸入源名呈一覽顯示。各輸入源名中顯示有無 圖像訊號之輸入。各輸入源名可藉由使用者對於文件攝影 機50之操作而選擇。即，使用者藉由對操作面板60進行操 作而自複數個輸入源名中選擇要顯示者。該選擇之指令係 145668.doc -15- 201042357 自文件攝影機5 0發送至投影儀1 〇。 返回至圖4，於步驟S27〇之後之步驟828〇中，控制部 接收來自上述文件攝影機5〇之選擇指令，進行根據所選擇 之輸入源之圖像之顯示。其結果，使用者自輸入源一覽畫 面SS中所選擇之輸入源名之輸入源顯示於螢幕％上。尤 其，於所選擇之輸入源為文件攝影機50之情形時，亦開始 獲取文件攝影機50所拍攝之圖像資料，從而 機5〇之圖像資料之顯示。再 " 丹有於來自文件攝影機50之選 擇指令無固定時間之ai，# Λ π 夂1·门之〖月形時，結束輸入源_覽畫面ss之顯 示並設定為（不顯示）。 於執行步驟S280之後或執行步驟S250之後，退至「返 回」，而暫時結束該切換執行處理。 3·作用、效果： 於乂如上述方式構成之本實施例之投影儀系統_中， 藉由按麼文件攝影機50之輸入源切換用按紐犯，可切換由 =儀:°所顯示之輸入源。因此，使用者可無需移動至载 置有投影儀或投影儀遙控器之 、 〜野尸作，而進打正顯示之輪入 源之切換’尤其，藉由僅以必 a 要之-人數按壓輪入源切換用 按鈕SB，亦可於文件攝影機 β τ刀換翰入源。因此，具有 可提昇使用者之操作性能之效果。 又，於本貫施例中，於每次 & 琨仃钕壓文件攝影機50之輸 入源切換用按鈕SB之操作時，逐一 切換正顯示之輸入源， 藉此可使使用者依次視認經切換 7俠之輸入源之畫面。因此， 使用者不會弄錯輸入源之切換。 ~ 又’亦具有如下之附屬效 145668.doc -16- 201042357 果，即使用者亦可進行自文件攝影機㈣文件攝影機以外 之輸入源之切換。 進而’於本實施例中’即使按I輸人源切換用按紐⑼， 圖像訊號未被輸人之輸人源亦會跳過，因此可迅速地顯示 目標圖像。又，即使於僅輸入有目前正投影之圖像訊號之 情形或完全未輸人圖像訊號之情形時，亦可藉由使用輸入 源一覽晝面而選擇輸入源。 ❹L has ended. Here, when it is determined that the input search for all the input sources has not ended, the processing is resumed in step S230, and the input source is switched to the next input source. Fig. 5 is an explanatory view showing an example of the case where the input source is switched by the process of "up to" (10), and the input according to "computer" is displayed as shown in 0). When the image of the source is pressed, the input source switching button SB is pressed as shown in (b), and the input source is moved to the next "video" (step S230), but if there is no "from" The input of the image signal of the VTR 91 (step S24〇··n〇), as shown in 145668.doc -14- 201042357 (d), the input source is further moved to the next "s_video" (step S230) Here, when there is an input of an image signal from the dvd player 92 as "s_video" (step S24: YES), an image according to the DVD player 92 is displayed (step S25). As shown in FIG. 5(e), when the input source switching button sb is pressed again, the input source moves to the next "camera" when there is an image signal from the document camera 50 as the "camera". When inputting, as shown in (7), an image of the camera 50 according to the document is displayed (step S250) o as shown in (g), when the input source switching button SB is pressed again, the input source moves to the "computer" where the order is the starting position, when there is a personal computer from the "computer" When the image signal of 9〇 is input, as shown in (a), an image according to the personal computer 90 is displayed (step S250). Further, 'return to FIG. 4, and it is determined in step S260 that the image is currently being displayed. When the input search of all the input sources other than the input source has been completed, the control unit 20 performs a process of displaying the input source list (step S270). When it is determined that the input search for all the input sources has ended, since only the current display is currently being displayed Since the image signal is input to the projector 10, the input source list is displayed on the screen sc, and the user is prompted to perform the following operations. Fig. 6 is an explanatory diagram showing an example of the input source list screen SS. In the input source list screen SS, all the input source names of the image input devices connected to the projector 1 are displayed in a list. The input source names indicate whether or not the image signals are input. The user selects the operation of the document camera 50. That is, the user selects the one to be displayed from the plurality of input source names by operating the operation panel 60. The selected command is 145668.doc -15- 201042357 from the file The camera 50 is sent to the projector 1 〇. Returning to Fig. 4, in step 828A after step S27, the control unit receives a selection command from the document camera 5 to perform an image according to the selected input source. As a result, the input source of the input source name selected by the user from the input source list screen SS is displayed on the screen %. In particular, when the selected input source is the document camera 50, the document camera is also acquired. 50 images of the images taken, so that the image data of the machine is displayed. Then, "Dan has a fixed time from the document camera 50. The instruction is a fixed time ai, # Λ π 夂1. When the door is in the shape of a moon, the display of the input source_view screen ss is ended and set to (not displayed). After the execution of step S280 or after the execution of step S250, the process returns to "return" and the switching execution process is temporarily ended. 3. Action and effect: In the projector system of the present embodiment configured as described above, by pressing the input source switching button of the document camera 50, the input displayed by the = meter: ° can be switched. source. Therefore, the user can move to the switch of the source of the positive display without moving to the projector or the remote controller of the projector, in particular, by pressing only the number of people The wheel-to-source switching button SB can also be used to change the source of the document camera β τ knife. Therefore, it has the effect of improving the user's operational performance. Moreover, in the present embodiment, each time the operation of the input source switching button SB of the document camera 50 is pressed, the input source being displayed is switched one by one, thereby enabling the user to switch between the views and the viewers. 7 Xia input source screen. Therefore, the user does not mistake the switching of the input source. ~ Also has the following subsidiary effects 145668.doc -16- 201042357, that is, the user can also switch from the input source other than the document camera (4) document camera. Further, in the present embodiment, even if the button (9) for switching the human source is pressed, the input signal of the image signal that has not been input is skipped, so that the target image can be quickly displayed. Further, even when only the image signal of the current orthographic projection is input or the image signal is not input at all, the input source can be selected by using the input source list. ❹
4.變形例： 再者，本發明並不限定於上述實施例或其變形例，可於 不脫離其主旨之範圍内實施各種變形，例如亦可實施如下 之變形。 ⑴上述實施例係以如下之方式構成’即於按壓輸入源 切換用^她，並僅輸入有目前正投影（顯示）之圖像訊號 之情形時，顯示輸人源-覽畫面，但亦可形成如下之構成 來代替前者，即於按壓輸入源切換用按鈕SB時，不論有無 圖像訊號之輸入，立即顯示輸入源—覽晝面。藉此，可迅 速地進行要顯示之輸入源之選擇。 (2)於上述實施例中，藉由操作輸入源切換用按鈕把， 亦可將正顯示之輪入源依次切換成文件攝影機以外者，但 亦可設定為於操作輸入源切換用按鈕SB時，可直接將輪入 源切換成文件攝影機來代替前者。即，投影儀若接收來自 文件攝影機之輸人源切換指令訊號，則檢索文件攝影機作 為要顯示之輸入源，並顯示來自文件攝影機之圖像資料。 再者，於該文件攝影機之檢索中，較好的是形成投影儀將 145668.doc •17· 201042357 圖7所不之輪入源檢測中晝面8丁顯示於螢幕上之構成。 (3)於上述實施射，於藉由使用者操作輸人源切換用 按鈕SB時’文件攝影機5〇輸出輸入源切換指令訊號，但亦 可设定為於文件攝影機5〇之支臂56處於展開之狀態時，文 件攝影機50輸出輸入源切換指令訊號來取代前者。即，亦 可形成如下之構成：於文件攝影機5〇中設置作為檢測支臂 56處於展開之狀態之支臂展開檢測部的開關，當該開關檢 測出支臂56之展開時’ #出輸入源切換指令訊號。藉由該 構成，使用者只要於使用文件攝影機5〇進行拍攝時進行展 =保持相機鏡頭58之支f 56之作f，便可將輸人源切換指 7 號輸出至投影儀丨〇。因此，操作性能更優異。再者， 文件攝影機50輸出輸入源切換指令訊號亦無需限定於上述 兩種情形’亦可設定為於藉由使用者操作其他開關時，文 :攝影機50輸出輪入源切換指令訊號。又，不一定必需限 疋於接受由使用者所實施之操作而開啟之開關，亦可形成 為於滿足特定之條件時，輸出輸入源切換指令訊號之構 成。 ,(4)於上述實施例中，於投影儀10與文件攝影機50之間 形成USB連接，但亦可為由LAN(L〇eal Area Netw〇rk，區 :網路)等其他有線所形成之連接來代替前者。又，不一 定必需為有線，亦可為由刪或副等無線連接所形成 者。 二於上述實施例中，使用文件攝影機5〇作為圖像訊號 置’但亦可形成使用包含攝像部之其他圖像訊號供 145668.doc -18- 201042357 給裝置，例如網路相機、數位靜態相機、攝影機等之構成 來代替前者。 (6)於上述實施例中，作為圖像顯示裝置，例示了光調 變元件344由透射型液晶面板構成之投影儀1〇，但亦可使 用反射型液晶面板或微鏡器件構成光調變元件344。又， Ο 〇 ；U貫細*例中，使用採用了 3個光調變元件344之投影儀 10對啦曰月進行了說明，但光調變元件344之數量並不限定 於3個。例如亦可於照明光學系統341中設置旋轉之色輪， 並使用1個光調變元件344分時地生成各色之圖像光。進 而，亦可形成使用4個以上之光調變元件344之構成。 ⑺於上述實施例t ’作為圖像顯示裝置，使用了將圖 像&〜於外部之螢幕sc之投影儀1() ’但亦可形成為使用包 3螢幕與將圖像投影於螢幕之背面侧之投影儀的投影電視 機之構成來代替前者。進而，並不限定於投影儀，亦可更 換成直視型之各種平板顯示器裝置等各種圖像顯示裝置。 ⑻又’於上述實施例中，亦可將由硬體所實現之構成 之—部分更換成軟體，反之，亦可將由軟體所實現之構成 之一部分更換成硬體。 【圖式簡單說明】 圖1係表示作為本發明之—實施例之投影儀系統1〇〇之概 略構成的說明圖。 圖2係表示投影儀10與文件攝影機5〇之内部構成之說明 圃 。 之切換指 圖3係表示由文件攝影機5〇之控制部μ所執行 145668.doc -19- 201042357 令發布處理之流程圖。 圖4係表示由投影儀10之控制部20所執行之切換執行處 理之流程圖。 圖5係表示由步驟S230至S260之反覆之處理所實現的輸 入源之切換之情況之一例的說明圖。 圖6係表示輸入源一覽晝面s S之一例之說明圖。 圖7係表示輸入源檢測中晝面ST之一例之說明圖。 圖8係表示投影儀10之投影部34之内部構成之說明圖。 【主要元件符號說明】 10 投影儀 20 控制部 22 存儲部 24 操作部 26 USB介面部 28 輸入介面部 30 輸入源切換部 32 圖像處理部 34 投影部 50 文件攝影機 52 基台 54 載置面 56 支臂 58 相機鏡頭 60 操作面板 145668.doc '20. 2010423574. Modifications: The present invention is not limited to the above-described embodiments or the modifications thereof, and various modifications may be made without departing from the spirit and scope of the invention. (1) The above embodiment is configured such that when the input source switching is pressed and only the image signal currently projected (displayed) is input, the input source-view screen is displayed, but In place of the former, when the input source switching button SB is pressed, the input source-view surface is immediately displayed regardless of whether or not the image signal is input. Thereby, the selection of the input source to be displayed can be quickly performed. (2) In the above embodiment, by operating the input source switching button handle, the wheel source to be displayed may be sequentially switched to be other than the document camera, but may be set to operate the input source switching button SB. You can directly switch the wheel source to a document camera instead of the former. That is, if the projector receives the input source switching command signal from the document camera, the document camera is searched as an input source to be displayed, and the image data from the document camera is displayed. Furthermore, in the search of the document camera, it is preferable to form a configuration in which the projector displays the 昼 昼 8 8 145 145 145 145 145 145 145 145 145 145 145 145 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 (3) In the above-described shooting, when the user operates the input source switching button SB, the 'document camera 5' outputs the input source switching command signal, but may be set to be at the arm of the document camera 5 In the expanded state, the document camera 50 outputs an input source switching command signal to replace the former. In other words, a configuration may be adopted in which a switch as an arm deployment detecting portion that detects that the arm 56 is in an unfolded state is provided in the document camera 5A, and when the switch detects the deployment of the arm 56, "# output source" Switch the command signal. With this configuration, the user can output the input source switching finger No. 7 to the projector 只要 as long as the user performs the shooting while holding the document camera 5 =. Therefore, the operational performance is more excellent. Furthermore, the output of the input source switching command signal by the document camera 50 is not limited to the above two situations. The image camera 50 may also be configured to output a round-source switching command signal when the user operates another switch. Further, it is not necessarily limited to accepting a switch that is turned on by an operation performed by a user, and may be formed to output an input source switching command signal when a specific condition is satisfied. (4) In the above embodiment, a USB connection is formed between the projector 10 and the document camera 50, but may be formed by other cables such as a LAN (L〇eal Area Netw〇rk, area: network). Connect to replace the former. Further, it is not necessarily required to be wired, and may be formed by a wireless connection such as deletion or secondary. In the above embodiment, the document camera 5 is used as the image signal, but other image signals including the camera portion can be formed for the device, such as a web camera or a digital still camera. The composition of the camera, etc. is substituted for the former. (6) In the above embodiment, as the image display device, the projector 1 is composed of a transmissive liquid crystal panel, but a reflective liquid crystal panel or a micromirror device may be used to constitute the light modulation. Element 344. Further, in the example of the 贯 〇 U U U U U U U U U U U 投影 投影 投影 投影 投影 投影 投影 投影 投影 投影 投影 投影 投影 投影 投影 投影 投影 投影 投影 投影 投影 投影 投影 投影 投影 投影 投影 投影 投影 投影 投影 投影 投影 投影For example, a rotating color wheel may be provided in the illumination optical system 341, and image light of each color may be generated in a time-division manner using one optical modulation element 344. Further, a configuration in which four or more optical modulation elements 344 are used may be formed. (7) In the above embodiment t' as the image display device, the projector 1() which uses the image &~ to the external screen sc is used, but it may be formed to use the package 3 screen and project the image on the screen. The former is the configuration of the projection television of the projector on the back side. Further, the present invention is not limited to the projector, and may be replaced with various image display devices such as various types of flat panel display devices of direct view type. (8) Further, in the above embodiment, a part of the configuration realized by the hardware may be replaced with a soft body, and conversely, a part of the configuration realized by the soft body may be replaced with a hard body. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is an explanatory view showing a schematic configuration of a projector system 1A as an embodiment of the present invention. Fig. 2 is a view showing the internal configuration of the projector 10 and the document camera 5A. Switching FIG. 3 is a flow chart showing the process of issuing 145668.doc -19- 201042357 by the control unit μ of the document camera 5. Fig. 4 is a flow chart showing the switching execution process executed by the control unit 20 of the projector 10. Fig. 5 is an explanatory diagram showing an example of the case where the input source is switched by the processing of the steps S230 to S260. Fig. 6 is an explanatory diagram showing an example of an input source list s S. Fig. 7 is an explanatory diagram showing an example of the pupil ST in the input source detection. FIG. 8 is an explanatory view showing the internal configuration of the projection unit 34 of the projector 10. [Description of main component symbols] 10 Projector 20 Control unit 22 Storage unit 24 Operating unit 26 USB interface unit 28 Input interface unit 30 Input source switching unit 32 Image processing unit 34 Projection unit 50 Document camera 52 Base 54 Mounting surface 56 Arm 58 Camera lens 60 Operation panel 145668.doc '20. 201042357
70 控制部 72 存儲部 74 操作部 76 USB介面部 78 照明部 80 照明控制部 82 攝像部 84 圖像處理部 86 析像度轉換部 90 個人電腦 91 錄影機 92 DVD播放器 100 投影儀系統 341 照明光學系統 342 光源 343 色彩分離光學系統 344R 紅光用光調變元件 344G 綠光用光調變元件 344B 藍光用光調變元件 345 中繼光學系統 346 投影透鏡 347 合成光學系統 SB 輸入源切換用按1丑 SC 螢幕 -21 - 145668.doc 201042357 輸入源一覽晝面 被攝體 ss τ -22- 145668.doc70 control unit 72 storage unit 74 operation unit 76 USB interface unit 78 illumination unit 80 illumination control unit 82 imaging unit 84 image processing unit 86 resolution conversion unit 90 personal computer 91 video recorder 92 DVD player 100 projector system 341 illumination Optical system 342 Light source 343 Color separation optical system 344R Red light modulation element 344G Green light modulation element 344B Blue light modulation element 345 Relay optical system 346 Projection lens 347 Synthetic optical system SB Input source switching button 1 ugly SC screen-21 - 145668.doc 201042357 Input source list 被 被 被 τ τ -22- 145668.doc